412021541 has 2 divisors, whose sum is σ = 412021542. Its totient is φ = 412021540.

The previous prime is 412021507. The next prime is 412021543. The reversal of 412021541 is 145120214.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297424516 + 114597025 = 17246^2 + 10705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412021541 is a prime.

Together with 412021543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412021543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206010770 + 206010771.

It is an arithmetic number, because the mean of its divisors is an integer number (206010771).

Almost surely, 2^412021541 is an apocalyptic number.

It is an amenable number.

412021541 is a deficient number, since it is larger than the sum of its proper divisors (1).

412021541 is an equidigital number, since it uses as much as digits as its factorization.

412021541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 412021541 is about 20298.3137476984. The cubic root of 412021541 is about 744.1148540505.

Adding to 412021541 its reverse (145120214), we get a palindrome (557141755).

The spelling of 412021541 in words is "four hundred twelve million, twenty-one thousand, five hundred forty-one".